Artificial turf

ABSTRACT

The present invention relates to an artificial turf which comprises a base cloth made of synthetic fiber, and synthetic fiber pile yams that are protruded up and extended from the base cloth. The base cloth has a form that braids made of synthetic fiber are woven in a reticular structure. The bottom end portions of the synthetic fiber pile yarns are knitted together with the base cloth and are fixed by the base cloth, and the top end portions of the synthetic fiber pile yams are protruded up and extended from the base cloth. The artificial turf according to the present invention has a plurality of void portions naturally formed in the base cloth having a reticular structure to make growth of natural grass possible.

TECHNICAL FIELD

The present invention relates to an artificial turf paved instead of natural grass on a playing field, etc., and more specifically to an artificial turf in which a plurality of void portion are naturally formed to make partial growth of natural grass possible with synthetic grass, and a filler such as rubber chips or sand that were filled in under the synthetic grass can be easily separated to make recycling easy, and which can be easily fixed on the ground of a playing field with pins instead of using adhesive.

BACKGROUND ART

Usually, an artificial turf includes a base cloth 1 made of synthetic fiber and synthetic fiber pile yarns 2 which are protruded up and extended from the base cloth 1.

Conventionally, an artificial turf, in which synthetic fiber pile yarns 2 are knitted or tufted on the woven or knitted base cloth 1 so that the bottom of synthetic fiber pile yarns 2 are fixed by the base cloth 1 and the top end portions of the synthetic pile yarn 2 are protruded up and extended from the base cloth 1 for forming synthetic grass as shown in FIG. 3 and FIG. 4, has been widely used.

FIG. 3 is a photograph showing a back of a conventional artificial turf, and FIG. 4 is a photograph showing a surface of the conventional artificial turf.

In the case of the conventional artificial turf, because void portions were not formed in a base cloth 1 composing the artificial turf, natural grass could not grow in the gaps of synthetic grass, so it is impossible for natural grass and synthetic grass to coexist. And after use, there were many difficulties in recycling the artificial turf because it is difficult to separate and remove the filler such as sand and rubber chips filled in under the artificial turf.

Another problem with the conventional artificial turf is that since the conventional artificial turf should have its back fixed to the ground of playing field by using adhesive the work is cumbersome and not environmentally friendly.

As another conventional art, an artificial turf with artificial holes made for growth of natural grass in conjunction with the conventional artificial turf as shown in FIG. 3 and FIG. 4 is being used in part.

Although the conventional artificial turf has an advantage in that it can be used with synthetic grass and natural grass coexisting because holes are provided for vegetation of natural grass, it had problems that the process is complex because an extra punching process is required, and part of base cloth should be cut out to form holes for vegetation of natural grass after making the artificial turf, which results in an increase of the manufacturing cost due to a lot loss of material, and there is a difficulty in recycling the artificial turf because after use it is difficult to separate and remove the filler filled in under the synthetic grass from the remaining portion of the base cloth in which holes for vegetation of natural grass were not formed.

DISCLOSURE Technical Problem

Accordingly, it is an object of the present invention to provide an artificial turf in which a plurality of void portions are naturally formed in the base cloth of the artificial turf to make it possible to use with natural grass and synthetic grass existing together, and after use the filler such as sand or rubber chips filled in under the artificial turf can easily be separated and removed to make recycling possible and can be easily fixed on the ground of a playing field with pins.

Technical Solution

In order to accomplish the foregoing objects, according to an aspect of the present invention, there is provided an artificial turf comprising: a base cloth made of synthetic fiber; and synthetic fiber pile yarns that are protruded up and extended from the base cloth, wherein the base cloth has a form that braids made of synthetic fiber are woven in a reticular structure.

Advantageous Effects

According to the present invention, the artificial turf has a plurality of void portions naturally formed in the base cloth having a reticular structure to make growth of natural grass possible, and because a filler such as rubber chips can easily be separated to make recycling easy and the artificial turf can be fixed on the ground of playing field with pins instead of adhesive, the environmental friendliness thereof is great.

DESCRIPTION OF DRAWINGS

The above objects, features and advantages of the present invention will become more apparent to those skilled in the related art in conjunction with the accompanying drawings. In the drawings:

FIG. 1 is a photograph showing a back of an artificial turf according to the present invention;

FIG. 2 is a photograph showing a surface of the artificial turf according to the present invention;

FIG. 3 is a photograph showing a back of a conventional artificial turf; and

FIG. 4 is a photograph showing a surface of the conventional artificial turf.

BEST MODE

Hereinafter, an artificial turf according to the present invention will be described in detail with reference to the attached drawings.

First, the artificial turf according to the present invention consists of a base cloth 1 made of synthetic fiber and synthetic fiber pile yarns 2 which are protruded up and extended from the base cloth 1 for forming synthetic grass.

FIG. 1 is a photograph showing a back of the artificial turf according to the present invention, and FIG. 2 is a photograph showing a surface of the artificial turf according to the present invention.

The artificial turf according to the present invention is characterized in that the base cloth 1 composing it is of a form in which braids knitted with synthetic fibers are woven in a reticular structure and the synthetic pile yarns 2 are of a structure protruded up and extended from the base cloth 1 of a reticular structure.

More specifically, the bottom end portions of the synthetic fiber pile yarns 2 are knitted together with the base cloth 1 and fixed by the base cloth 1, and the top end portions of the synthetic fiber pile yarn 2 have a structure protruded up and extended from the base cloth 1.

Due to this, a plurality of void portions 3 are naturally formed in the base cloth 1 of the reticular structure in the artificial turf according to the present invention.

In FIG. 1 and FIG. 2, the void portions 3 are not shown well because they are covered by the synthetic fiber pile yarns 2 that are protruded up and extended from the base cloth 1, but if brush aside the synthetic fiber pile yarns 2 the void portions 3 will be easily visible.

Due to that, the present invention can allow for growth of natural grass through the void portions 3, so it can be used also with synthetic grass and natural grass coexisting.

If natural grass grows in the void portions 3, it will pass through the void portions 3 in the base cloth 1 of the reticular structure to come up from gaps of synthetic fiber pile yarns 2.

But the present invention is not necessarily limited to use only with synthetic grass and natural grass coexisting, but can be used with synthetic grass only without the growth of natural grass.

If a user wants to prevent natural grass or weeds from growing into the void portions 3 in the base cloth of the artificial turf, it is also desirable to spread shading vinyl under the artificial turf.

Also, the present invention makes it possible to more easily remove a filler such as sand or rubber chips filled in under the artificial turf after using the artificial turf due to void portions 3 formed naturally in the base cloth of the artificial turf, so it is easy to recycle the artificial turf.

Also, since in the present invention the base cloth 1 composing the artificial turf is of a structure in which braids are woven in a reticular structure, the artificial turf can be fixed on the ground by mounting it on the ground of a playing field with pins attached to braids without using adhesive, the artificial turf paving process is environmentally friendly and simplified.

To further improve the adhesive strength of the base cloth 1 and synthetic fiber pile yarns 2, it is preferable that the base cloth 1 is coated with a resin layer of polyurethane, etc.

The artificial turf according to the present invention is manufactured by feeding yarns for making the base cloth and yarns for making pile yarns simultaneously into a Raschel knitting machine to knit with the former the base cloth 1 of a form with the braids woven in a reticular structure and knit with the latter the loop forms fixed by the base cloth 1 and then cutting the loops to make pile yarn 2.

DESCRIPTION OF REFERENCE NUMERALS IN DRAWINGS

-   1: Base cloth of artificial turf -   2: Synthetic fiber pile yarn of artificial turf -   3: Void portion

Although the present invention has been described in connection with the exemplary embodiments illustrated in the drawings, it is only illustrative. It will be understood by those skilled in the art that various modifications and equivalents can be made to the present invention. Therefore, the true technical scope of the present invention should be defined by the appended claims. 

1. An artificial turf comprising: a base cloth made of synthetic fiber; and synthetic fiber pile yarns that are protruded up and extended from the base cloth, wherein the base cloth has a form that braids made of synthetic fiber are woven in a reticular structure.
 2. The artificial turf according to claim 1, wherein the bottom end portions of the synthetic fiber pile yarns are knitted together with the base cloth and are fixed by the base cloth, and the top end portions of the synthetic fiber pile yarns are protruded up and extended from the base cloth.
 3. The artificial turf according to claim 1, wherein the base cloth made of the synthetic fiber is coated with a resin layer. 